Within the top left-hand quarter of a square(its side an integer below 40 cm) I marked two points, each of which was distant an integral number of cm, not only from each side of the square but also from both the top left-hand corner and the bottom right-hand corner of the square.
What size was a side of this square?
Based on Enigma problem (New Scientist 2010)
(In reply to can't be sure
I stand corrected.
It should be declared:
side = ODD integer .
Btw , it is solvable analytically.
Thanks for your correction.